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PE42742
Product Specification
Evaluation Kit
The SPDT Switch Evaluation Kit facilitates
Figure 18. Evaluation Board Layouts
Peregrine Specification 101/0269
customer evaluation of the PE42742 SPDT
switch. The RF common port is connected through
a 75 ? transmission line to J2. Ports 1 and 2 are
connected through 75 ? transmission lines to J1
and J3. A through line connects F connectors J4
and J5. This transmission line can be used to
estimate the PCB loss over the environmental
conditions. J6 provides DC and digital inputs to
the device.
The board is composed of a two metal layer FR4
material with a total thickness of 0.032”. The
transmission lines are hybrid microstrip/coplanar
waveguide with ground plane (28 mil core, 12 mil
width, 12 mil gap).
The provided jumpers short the control pins to
ground for logic low. With the jumper removed the
control input rises to V DD for logic high through the
1 M ? pull up resistor. These resistors will draw
several microamps from V DD. They are not
required for normal operation.
Figure 19. Evaluation Board Schematic
Peregrine Specification 102/0352
?2006-2012 Peregrine Semiconductor Corp. All rights reserved.
Document No. 70-0203-07 │ UltraCMOS? RFIC Solutions
Page 8 of 10
Logo updated under non-rev change. Peregrine products are protected under one or more of the following U.S. Patents: http://patents.psemi.com
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